Is ENSO a cycle or a series of events?

Slides shown during talk at EGS. Nice, 8 April 2003
(Session NP8: ENSO Dynamics and predictability)

William S. Kessler
NOAA / Pacific Marine Environmental Laboratory
7600 Sand Point Way NE
Seattle WA 98115 USA
william.s.kessler@noaa.gov

1. Introductory slide
2. The Jin discharge-recharge mode
3. EOFs of Z20: Spatial patterns
   PC timeseries   PC comparisons
4. Warm water volume and SST: Time series   Phase orbits
      Updated plots for data through Dec 2004: Time series   Phase orbits
5. Radial histogram   Speed around orbit   A mean cycle
6. ENSO persistence: Amplitude from one phase to another   Lag between El Niños as a function of SST amplitude
7. Conclusion slide